Royal Enfield corporate office

Royal Enfield's corporate headquarters was architecturally conceived by Studio Lotus, and the acoustic brief was the standing problem of contemporary open-plan and activity-based workplace design: speech privacy and intelligibility across collaborative zones, without resorting to enclosed cellular offices that would compromise the architect's spatial and visual design intent.

The consultancy worked to Speech Transmission Index (STI) and Articulation Class benchmarks appropriate to confidential and semi-confidential collaborative work settings, alongside background HVAC noise criteria tuned to NC-35 to NC-40 ranges recommended for open-plan corporate environments under prevailing international workplace-acoustics guidance.

Background noise is a design variable in an open plan rather than only a nuisance. Too much of it and the room becomes tiring; too little and every conversation carries across the floorplate. Setting it deliberately, and then controlling reverberation around it, is what makes an unpartitioned floor workable.

The response was a coordinated ceiling, wall and furniture-integrated absorption strategy, drawn as one system rather than assembled from separate purchases.

• Ceiling-plane NRC-rated absorption, calibrated to control reverberant build-up across the large open floorplate.
• Soft-boundary treatments at meeting-pod and huddle-zone perimeters, to elevate localised speech privacy where confidential conversation actually happens.
• Wall and furniture-integrated absorption coordinated with the ceiling, so that the treatment is part of the fit-out rather than applied to it.

None of it introduces hard partition lines that would fragment Studio Lotus's fluid architectural language. That constraint is what pushes the work into the ceiling plane and the furniture: absorption placed where it is not read as a wall still does the job of one, provided there is enough of it and it sits close to the people talking. The same construction thinking applies whether the boundary is built or soft.

Confidentiality and clear speech on an open floorplate, with the architecture's openness left as drawn.

The engagement reflects a growing recognition among design-forward corporate occupiers that acoustic performance is not an afterthought bolted on to architecture but a parallel discipline, embedded from concept stage. As open, biophilic and activity-based workplace typologies spread across premium commercial real estate, employee wellbeing, cognitive performance and confidentiality all come to rest on acoustic comfort as much as on spatial design. It is cheaper and better resolved when the acoustician is in the room during design, not after handover.